000020127 001__ 20127
000020127 005__ 20170118182356.0
000020127 04107 $$aeng
000020127 046__ $$k2017-01-09
000020127 100__ $$aTakase, Yuya
000020127 24500 $$aFormula for Shear Strength of Cylindrical Shear-Key Applied Seismic Retrofitting

000020127 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020127 260__ $$b
000020127 506__ $$arestricted
000020127 520__ $$2eng$$aIn the seismic retrofitting of an existing concrete structure, the surface of the structural frame is chipped to improve the integrity between the existing frame and retrofitting member. But, quantitatively evaluating strength of these joints are difficult because the concavo-convex shape is influenced by construction worker. Therefore, the authors developed a new joint referred to as the cylindrical shear-key. The cylindrical shear-key is made by filling a cylindrical core on the concrete surface with grout or concrete, and resists shear forces as a shear-key. Creating a uniform shape is expected to enable quantitative strength evaluation. In this study, direct shear tests were conducted using a cylindrical shear-key to investigate the fundamental performance of the shear-key. Then, based on the test results, an formula was developed for evaluating the strength of cylindrical shear-key, and it was shown that the maximum strength could be quantitatively evaluated accurately. And cylindrical shear-key is can contribute to the progression of seismic retrofitting.

000020127 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020127 653__ $$aConcrete surface roughening, Bearing resistance, Shear-key, Earthquake retrofitting, Shear strength

000020127 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020127 720__ $$aTakase, Yuya$$iKubota, Masaharu$$iHiwatashi, Takeshi$$iAbe, Takahide$$iKatori, Keiichi
000020127 8560_ $$ffischerc@itam.cas.cz
000020127 8564_ $$s490891$$uhttps://invenio.itam.cas.cz/record/20127/files/611.pdf$$yOriginal version of the author's contribution as presented on USB, paper 611.
000020127 962__ $$r16048
000020127 980__ $$aPAPER